Photographic flash trigger



FIG. 1 is a front view of a photographic flash trigger;

FIG. 2 is a rear view of the photographic flash trigger of FIG. 1;

FIG. 3 is a left view of the photographic flash trigger of FIG. 1;

FIG. 4 is a right view of the photographic flash trigger of FIG. 1;

FIG. 5 is a top view of the photographic flash trigger of FIG. 1; and,

FIG. 6 is a bottom view of the photographic flash trigger of FIG. 1.

The broken lines depict portions of the photographic flash trigger form no part of the claimed design. 

CLAIM The ornamental design for a photographic flash trigger, as shown and described. 